Purification device of baby carriage

ABSTRACT

A purification device of baby carriage is provided and includes a main body, a purification unit, a gas guider and a gas detection module. The purification unit, the gas guider and the gas detection module are disposed in the main body to guide the gas outside the main body through the purification unit for filtering and purifying the gas, and discharge a purified gas. The gas detection module detects particle concentration of suspended particles contained in the purified gas. The gas guider is controlled to operate and export a gas at an airflow rate within 3 minutes. The particle concentration of the suspended particles contained in the purified gas, which is filtered by the purification unit, is reduced to and less than 0.75 μg/m3. Consequently, the purified gas is filtered, and the baby inside the baby carriage can breathe with safety.

FIELD OF THE INVENTION

The present disclosure relates to a purification device, and moreparticularly to a purification device of a baby carriage implemented andapplied in the baby carriage and combined with the baby carriage.

BACKGROUND OF THE INVENTION

In recent, people pay more and more attention to the quality of the airaround their lives. For example, carbon monoxide, carbon dioxide,volatile organic compounds (VOC), PM2.5, nitric oxide, sulfur monoxideand even the suspended particles contained in the air are exposed in theenvironment to affect the human health, and even endanger the lifeseriously. Special attention is require in the nasal passages of babies,which are narrow and more likely to accumulate particles contained inthe air, and therefore the secretions in the nasal passages increase andcause the problem of nasal passages obstruction. Therefore, providing apurification solution for purifying and improving the air quality,preventing babies from breathing harmful gases in outdoor environment,and monitoring the air quality in real time anytime and anywhere, whichis an issue of concern developed in the present disclosure.

SUMMARY OF THE INVENTION

An object of the present disclosure provides a purification device of ababy carriage. A gas detection module is utilized to monitor the airquality in the environment at any time, and a purification unit isutilized to provide a solution for purifying and improving the airquality. In this way, the gas detection module and the purification unitcombined with a gas guider can export a gas at a specific airflowamount, so as to allow the purification unit to filter and obtain apurified gas. In addition, the gas guider constantly controls theexported airflow rate within 3 minutes to reduce the particleconcentration of the suspended particles contained in the purified gasto less than 0.75 μg/m³, so as to provide the purification effect bysafe filtration. Moreover, the gas detection module is used to detectthe breathing area around the nose, so as to ensure that the purifiedgas through safe filtration can be provided. When the particleconcentration is too high, the real-time information is available forissuing warning notice to take preventive measures immediately and/orprovide an isolation cover for protection, so as to take protectivemeasures in the isolation cover.

In accordance with an aspect of the present disclosure, a purificationdevice of a baby carriage applied in the baby carriage is provided andincludes a main body, a purification unit, a gas guider and a gasdetection module. The main body is mounted on the baby carriage andincludes at least one inlet and at least one outlet. The purificationunit is disposed in the main body for filtering a gas introduced intothe main body through the at least one inlet. The gas guider is disposedin the main body and is adjacent to the at least one outlet. The gasoutside the main body is inhaled and flows through the purification unitfor filtering and purifying, so that a purified gas is filtered and isdischarged out through the at least one outlet. The gas detection moduleis disposed in the main body for detecting a particle concentration ofsuspended particles contained in the purified gas filtered through thepurification unit. The gas guider is constantly controlled to operateand export a gas at an airflow rate within 3 minutes to filter andreduce the particle concentration of the suspended particles containedin the purified gas to less than 0.75 μg/m³, so as to provide thepurified gas by safe filtration to a baby in the baby carriage forbreathing

BRIEF DESCRIPTION OF THE DRAWINGS

The above contents of the present disclosure will become more readilyapparent to those ordinarily skilled in the art after reviewing thefollowing detailed description and accompanying drawings, in which:

FIG 1A is a schematic view illustrating a purification device of a babycarriage according to an embodiment of the present disclosure, whereinthe purification device is hung on the baby carriage in an environment;

FIG. 1B is a schematic view illustrating the purification device of thebaby carriage according to an embodiment of the present disclosure,wherein the purification device is hung on an isolation cover of thebaby carriage in an environment;

FIG. 2A is a schematic exterior view illustrating the purificationdevice of the baby carriage according to the embodiment of the presentdisclosure;

FIG. 2B is a flow chart of a gas-purification processing method of thepurification device of the baby carriage of the present disclosure;

FIG. 3A is a schematic cross-sectional view illustrating thepurification device of the baby carriage of the present disclosure;

FIG. 3B is a schematic cross-sectional view illustrating a purificationunit formed by combining the filter screen of FIG. 3A with aphoto-catalyst unit;

FIG. 3C is a schematic cross-sectional view illustrating a purificationunit formed by combining the filter screen of FIG. 3A with aphoto-plasma unit;

FIG. 3D is a schematic cross-sectional view illustrating a purificationunit formed by combining the filter screen of FIG. 3A with a negativeionizer;

FIG. 3E is a schematic cross-sectional view illustrating a purificationunit formed by combining the filter screen of FIG. 3A with a plasma ionunit;

FIG. 4A is a schematic exploded front view illustrating the relatedcomponents of the actuating pump served as the gas guider of thepurification device of the baby carriage according to the embodiment ofthe present disclosure;

FIG. 4B is a schematic exploded rear view illustrating the relatedcomponents of the actuating pump served as the gas guider of thepurification device of the baby carriage according to the embodiment ofthe present disclosure;

FIG. 5A is a schematic cross-sectional view illustrating the assembledactuating pump served as the gas guider of the purification device ofthe baby carriage in FIG. 4A according to an embodiment of the presentdisclosure;

FIG. 5B is a schematic cross-sectional view illustrating the assembledactuating pump of the gas guider of the purification device of the babycarriage in FIG. 4A according to another embodiment of the presentdisclosure;

FIGS. 5C to 5E schematically illustrate the operation steps of theactuating pump of FIG. 5A;

FIG. 6A is schematic exterior view illustrating a gas detection moduleof the purification device of the baby carriage according to theembodiment of the present disclosure;

FIG. 6B is schematic exterior view illustrating a gas detection mainpart of the gas detection module in FIG. 6A;

FIG. 6C is a schematic exploded view illustrating the gas detection mainpart in FIG. 6B;

FIG. 7A is a schematic perspective front view illustrating a base of thegas detection main part in FIG. 6C;

FIG. 7B is a schematic perspective rear view illustrating the base ofthe gas detection main part in FIG. 6C;

FIG. 8 is a schematic perspective view illustrating a laser componentand a particulate sensor accommodated in the base of the gas detectionmain part in FIG. 6C;

FIG. 9A is a schematic exploded view illustrating the combination of thepiezoelectric actuator and the base of the gas detection main part inFIG. 6C;

FIG. 9B is a schematic perspective view illustrating the combination ofthe piezoelectric actuator and the base of the gas detection main partin FIG. 6C;

FIG. 10A is a schematic exploded front view illustrating thepiezoelectric actuator of the gas detection main part in FIG. 6C;

FIG. 10B is a schematic exploded rear view illustrating thepiezoelectric actuator of the gas detection main part in FIG. 6C;

FIG. 11A is a schematic cross-sectional view illustrating thepiezoelectric actuator of the gas detection main part in FIG. 10Aaccommodated in the gas-guiding-component loading region according tothe embodiment of the present disclosure;

FIGS. 11B and 11C schematically illustrate the operation steps of thepiezoelectric actuator of FIG. 11A;

FIGS. 12A to 12C schematically illustrate gas flowing paths of the gasdetection main part in FIG. 6B;

FIG. 13 schematically illustrates a light beam path emitted from thelaser component of the gas detection main body in FIG. 6C; and

FIG. 14 a block diagram illustrating a configuration of a controllingcircuit board and the related components of the purification device ofthe baby carriage according to the embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The present disclosure will now be described more specifically withreference to the following embodiments. It is to be noted that thefollowing descriptions of preferred embodiments of this invention arepresented herein for purpose of illustration and description only. It isnot intended to be exhaustive or to be limited to the precise formdisclosed.

Please refer to FIGS. 1A, 1B, 2A, 2B and 3A. The present disclosureprovides a purification device of a baby carriage 100 applied in thebaby carriage 100 and including a main body 1, a purification unit 2, agas guider 3, a gas detection module 4 and a power unit 5. In theembodiment, the power unit 5 provides power for the purification unit 2,the gas guider 3 and the gas detection module 4 to start operation. Themain body 1 is disposed on the baby carriage 100 and includes at leastone inlet 11 and at least one outlet 12. The purification unit 2 isdisposed in the main body 1 for filtering a gas introduced into the mainbody 1 through the at least one inlet 11. The gas guider 3 disposed inthe main body 1 is adjacent to the at least one outlet 12 for filteringand purifying the gas outside the main body 1 inhaled and flowed throughthe purification unit 2, so that a purified gas is filtered anddischarged out through the at least one outlet 12. The gas detectionmodule 4 is disposed in the main body 1 for detecting a particleconcentration of suspended particles contained in the purified gasfiltered through the purification unit2. In the embodiment, the gasguider 3 is constantly controlled to operate and export a gas at anairflow rate within 3 minutes to reduce the particle concentration ofthe suspended particles contained in the purified gas to less than 0.75μg/m³, so as to provide the purified gas through safe filtration to ababy breathed in the baby carriage 100.

In addition, the present disclosure provides a purification device of ababy carriage 100A. How to apply the purification device to the babycarriage 100 and perform a gas purification procedure is described asbelow.

Firstly, in one embodiment of the present disclosure, as shown in FIG.2B, a gas-purification processing method of the purification device ofthe baby carriage is provided, and includes the following steps.

In a step S 1, a purification device of a baby carriage 100A is providedfor filtering and purifying the gas, and exporting a purified gas. Asshown in FIG. 3A, the purification device of a baby carriage 100A isformed by disposing the purification unit 2, the gas guider 3 and thegas detection module 4 in the main body 1, for filtering and purifyingthe gas, and exporting a purified gas. In the embodiment, as shown inFIG lA and FIG. 2A, the main body 1 of the purification device of a babycarriage 100A is a directional gas-guiding device, which is fixedlycombined with the baby carriage 100 for implementation by a fixed frame101. Moreover, a directional guiding element 14 is disposed in the atleast one outlet 12 of the main body 1, so that a purified gas that hasbeen directional filtered can be discharged from the at least one outlet12. In the embodiment, the at least one outlet 12 of the main body 1maintains a breathing distance L from a breathing region of the baby inthe baby carriage 100, and the breathing distance L is ranged from 60 cmto 200 cm.

In a step S2, a particle concentration of the suspended particlescontained in the purified gas in the baby carriage 100 is detected inreal time. As shown in FIG. 3A, the particle concentration of thesuspended particles contained in the purified gas and filtered by thepurification unit 2 is detected by the gas detection module 4 in realtime.

In a step S3, the gas detection module 4 detects, issues an alarm and/ornotification and feeds back to adjust the airflow rate of the gas guider3, which is constantly controlled to operate and export a gas at anairflow rate within 3 minutes to reduce the particle concentration ofthe suspended particles contained in the purified gas to less than 0.75μg/m³, so as to provide the purified gas by safe filtration for a babyto breath in the baby carriage 100. In the embodiment, the gas detectionmodule 4 detects the particle concentration of the suspended particlescontained in the purified gas with a set threshold of 0.75 μg/m³. Asshown in FIG. 6A and FIG. 14, the gas detection module 4 includes acontrolling circuit board 4 a, a gas detection main part 4 b, amicroprocessor 4 c and a communicator 4 d. In the embodiment, the gasdetection main part 4 b, the microprocessor 4 c and the communicator 4 dare integrally packaged on the controlling circuit board 4 a andelectrically connected to the controlling circuit board 4 a. Themicroprocessor 4 c receives a detection datum of the particleconcentration of the suspended particles contained in the purified gasfrom the gas detection module 4 for calculating and processing, andcontrols to enable and/or disabled the operations of the gas guider 3for filtering and purifying the gas. The communicator 4 d transmits thedetection datum of the particle concentration received from themicroprocessor 4 c to an external device 6, such as a mobile device, asmart watch, a wearable device, a computer or a cloud device, through acommunication transmission, so that the external device 6 obtains thedetection datum of the particle concentration of the purified gas forrecording, issuing an alarm and/or notification, and feeding back to thepurification device of a baby carriage 100A to adjust the airflow rateof the gas guider 3. When the particle concentration in the detectiondatum is higher than the set threshold of particle concentration (i.e.,0.75 μg/m³), the external device 6 issues an alarm and/or notificationand gives feedback to notify the purification device of a baby carriage100A to adjust the airflow rate of the gas guider 3 and control the gasguider 3 to operate and export a gas continuously within 3 minutes, andthe airflow rate exported by the gas guider 3 is at least 800 ft³/min(cubic foot per minute, CFM.) to reduce the particle concentration ofthe suspended particles contained in the purified gas to less than 0.75μg/m³, so as to provide the purified gas by safe filtration for the babyto breath in the baby carriage 100. Certainly, in another embodiment, asshown in FIG. 1B, the baby carriage 100 further includes an isolationcover 8 for covering the baby carriage 100 and the baby in the babycarriage 100. Moreover, the isolation cover 8 has an opening 81 for themain body 1 to be fixed in the opening 81, the at least one inlet 11 ofthe main body 1 is located outside the isolation cover 8, and the atleast one outlet 12 of the main body 1 is located inside the isolationcover 8. The at least one outlet 12 of the main body 1 maintains at abreathing distance L from a breathing region of the baby in the babycarriage 100, and the breathing distance L is ranged from 60 cm to 200cm. In this way, the airflow rate exported by the gas guider 3 of thepurification device of a baby carriage 100A is less than 800 ft³/min anddoesn't require larger airflow rate. Inside the insolation cover 8, thepurified gas provided by safe filtration is enough for the baby tobreath in the baby carriage 100. Preferably but not exclusively, theexternal communication transmission of the communicator 4 d is may be awired two-way communication transmission, such as a USB communicationtransmission, or a wireless communication transmission, such as Wi-Ficommunication transmission, Bluetooth communication transmission, aradio frequency identification communication transmission, or a nearfield communication (NFC) transmission.

According to the above description, the gas detection module 4 isutilized in the purification device of a baby carriage 100A of thepresent disclosure to monitor the air quality in the baby carriage 100in real time, and the purification unit 2 is utilized in thepurification device of a baby carriage 100A of the present disclosure toprovide a solution for purifying and improving the air quality. In thisway, the gas detection module 4 and the purification unit 2 combinedwith the gas guider 3 can export a gas at a specific airflow rate, so asto provide the purified gas by filtering of purification unit 2. Inaddition, the gas guider 3 constantly controls the exported airflow ratewithin 3 minutes to reduce the particle concentration of the suspendedparticles contained in the purified gas to less than 0.75 m/m3, so as toachieve the purification effect of safe filtration. Moreover, the gasdetection module 4 is used to detect the breathing region of the baby inthe baby carriage 100, so as to ensure that the purified gas is providedby safe filtration. The real-time information is available, such thatthe preventive measures can be taken immediately, or the isolation cover8 can be provided for isolating the air in the outside environment.

As shown in FIG. 3A, in the embodiment, the main body 1 further includesa gas-flow channel 13 disposed between the at least one inlet 11 and theat least one outlet 12. The purification unit 2 is disposed in thegas-flow channel 13 for filtering and purifying the gas. The gas guider3 is disposed in the gas-flow channel 13 and located at a side of thepurification unit 2, so that the gas is inhaled through the at least oneinlet 11, flows through the purification unit 2 for filtering andgenerating the purified gas, and is discharged out through the at leastone outlet 12. In this way, the gas detection module 4 can control theenablement and disablement state operations of the gas guider 3. Whenthe gas guider 3 is enabled, the gas outside the main body 1 is inhaledthrough the at least one inlet 11, flows through the purification unit 2for filtering and purifying, and is discharged out through the at leastone outlet 12, so as to provide the filtered and purified gas to thebaby for breathing

The above-mentioned purification unit 2 disposed in the gas-flow channel13 can be implemented in embodiments. For example, as shown in FIG. 3A,the purification unit 2 includes a high efficiency particulate air(HEPA) filter screen 2 a. When the gas is introduced into the gas-flowchannel 13 by the gas guider 3, and the gas is filtered through the HEPAfilter screen 2 a to adsorb the chemical smoke, bacteria, dust particlesand pollen contained in the gas to achieve the effects of filtering andpurifying the gas introduced into the main body 1. In some embodiments,the HEAP filter screen 2 a is coated with a cleansing factor containingchlorine dioxide to inhibit viruses, bacteria, influenza A virus,influenza B virus, enterovirus or norovirus in the gas outside the mainbody 1. The inhibition rate can reach more than 99%. It is helpful ofreducing the cross-infection of viruses. In other embodiments, the HEPAfilter screen 2 a is coated with a herbal protective layer extractedfrom ginkgo and Japanese rhus chinensis to form a herbal protectiveanti-allergic filter, so as to resist allergy effectively and destroy asurface protein of influenza virus, such as H1N1 influenza virus, in thegas introduced into the main body 1 and passing through HEPA filterscreen 2 a. In some other embodiments, the HEPA filter screen 2 a iscoated with a silver ion to inhibit viruses and bacteria contained inthe gas introduced into the main body 1.

As shown in FIG. 3B, in the embodiment, the purification unit 2 includesa photo-catalyst unit 2 b combined with the HEPA filter screen 2 a. Thephoto-catalyst unit 2 b includes a photo-catalyst 21 b and anultraviolet lamp 22 b. The photo-catalyst 21 b is irradiated with theultraviolet lamp 22 b to decompose the gas introduced into the main body1 for filtering and purification, so as to purify the gas. In theembodiment, the photo-catalyst 21 b and the ultraviolet lamp 22 b aredisposed in the gas-flow channel 13, respectively, and spaced apart fromeach other at a distance. In the embodiment, the gas outside the mainbody 1 is introduced into the gas-flow channel 13 by the gas guider 3,and the photo-catalyst 21 b is irradiated by the ultraviolet lamp 22 bto convert light energy into chemical energy, thereby decomposes harmfulgases and disinfect bacteria contained in the gas, so as to achieve theeffects of filtering and purifying the introduced gas.

As shown in FIG. 3C, in the embodiment, the purification unit 2 includesa photo-plasma unit 2 c combined with the HEPA filter screen 2 a. Thephoto-plasma unit 2 c includes a nanometer irradiation tube 21 c. Thegas introduced into the main body 1 is irradiated by the nanometerirradiation tube 21 c to decompose volatile organic gases contained inthe gas and purify the gas. In the embodiment, the nanometer irradiationtube 21 c is disposed in the gas-flow channel 13. When the gas outsidethe main body 1 is introduced into the gas-flow channel 13 by the gasguider 3, the gas is irradiated by the nanometer irradiation tube 21 c,thereby decomposes oxygen molecules and water molecules contained in thegas into high oxidizing photo-plasma, which is an ion flow capable ofdestroying organic molecules. In that, volatile formaldehyde, volatiletoluene and volatile organic (VOC) gases contained in the gas aredecomposed into water and carbon dioxide, so as to achieve the effectsof filtering and purifying the introduced gas.

As shown in FIG. 3D, in the embodiment, the purification unit 2 includesa negative ionizer 2 d combined with the HEPA filter screen 2 a. Thenegative ionizer 2 d includes at least one electrode wire 21 d, at leastone dust collecting plate 22 d and a boost power supply device 23 d.When a high voltage is discharged through the electrode wire 21 d, thesuspended particles contained in the gas introduced into the main body 1are attached to the dust collecting plate 22 d, so as to purify the gas.In the embodiment, the at least one electrode wire 21 d and the at leastone dust collecting plate 22 d are disposed within the gas-flow channel13. When the at least one electrode wire 21 d is provided with a highvoltage to discharge, the dust collecting plate 22 d is carry withnegative charge. When the gas outside the main body 1 is introduced intothe gas-flow channel 13 by the gas guider 3, the at least one electrodewire 21 d discharges to make the suspended particles in the gas to carrywith positive charge, and therefore the suspended particles havingpositive charge are adhered to the dust collecting plate 22 d carry withnegative charges, so as to achieve the effects of filtering andpurifying the introduced gas.

As shown in FIG. 3E, in the embodiment, the purification unit 2 includesa plasma ion unit 2 e combined with the HEPA filter screen 2 a. Theplasma ion unit 2 e includes a first electric-field protection screen 21e, an adsorption filter screen 22 e, a high-voltage discharge electrode23 e, a second electric-field protection screen 24 e and a boost powersupply device 25 e. The boot power supply device 25 e provides a highvoltage to the high-voltage discharge electrode 23 e to discharge andform a high-voltage plasma column with plasma ion, so as to decomposeviruses or bacteria contained in the gas introduced into the main body 1by the plasma ion. In the embodiment, the upper electric-fieldprotection screen 21 e, the adsorption filter screen 22 e, thehigh-voltage discharge electrode 23 e and the lower electric-fieldprotection screen 24 e are disposed within the gas-flow channel 13. Theadsorption filter screen 22 e and the high-voltage discharge electrode23 e are located between the upper electric-field protection screen 21 eand the lower electric-field protection screen 24 e. As the high-voltagedischarge electrode 23 e is provided with a high voltage by the bootpower supply 25 e, a high-voltage plasma column with plasma ion isformed. When the gas outside the main body 1 is introduced into thegas-guiding channel 13 by the gas guider 3, oxygen molecules and watermolecules contained in the gas are decomposed into positive hydrogenions (H⁺) and negative oxygen ions (O₂) through the plasma ion. Thesubstances attached with water around the ions are adhered on thesurface of viruses and bacteria and converted into OH radicals withextremely strong oxidizing power, thereby removing hydrogen (H) from theprotein on the surface of viruses and bacteria, and thus decomposing(oxidizing) the protein, so as to filter the introduced gas and achievethe effects of filtering and purifying.

Preferably but not exclusively, the gas guider 3 is a fan, such as avortex fan or a centrifugal fan. Alternatively, the gas guider 3 is anactuating pump 30, as shown in FIGS. 4A, 4B, 5A and 5B. In theembodiment, the actuating pump 30 includes a gas inlet plate 301, aresonance plate 302, a piezoelectric actuator 303, a first insulationplate 304, a conducting plate 305 and a second insulation plate 306,which are sequentially stacked on each other. In the embodiment, the gasinlet plate 301 includes at least one inlet aperture 301 a, at least oneconvergence channel 301 b and a convergence chamber 301 c. The at leastone gas inlet aperture 301 a is disposed to inhale the gas outside themain body 1. The at least one gas inlet aperture 301 a correspondinglypenetrates through the gas inlet plate 301 into the at least oneconvergence channel 301 b, and the at least one convergence channel 301b is converged into the convergence chamber 301 c. In that, the gasinhaled through the at least one gas inlet aperture 301 a is convergedinto the convergence chamber 301 c. The number of the gas inletapertures 301 a is the same as the number of the convergence channels301 b. In the embodiment, the number of the gas inlet apertures 301 aand the convergence channels 301 b is exemplified by four, but notlimited thereto. The four gas inlet apertures 301 a penetrate throughgas inlet plate 301 into the four convergence channels 301 brespectively, and the four convergence channels 301 b converge to theconvergence chamber 301 c.

Please refer to FIGS. 4A, 4B and 5A. The resonance plate 302 isattaching and assembling on the gas inlet plate 301. The resonance plate302 has a central aperture 302 a, a movable part 302 b and a fixed part302 c. The central aperture 302 a is located at a center of theresonance plate 302 and is corresponding in position to the convergencechamber 301 c of the gas inlet plate 301. The movable part 302 bsurrounds the central aperture 302 a and is corresponding in position tothe convergence chamber 301 c. The fixed part 302 c is disposed aroundthe periphery of the resonance plate 302 and firmly attached on the gasinlet plate 301.

Please refer to FIGS. 4A, 4B and 5A, again. The piezoelectric actuator303 includes a suspension plate 303 a, an outer frame 303 b, at leastone bracket 303 c, a piezoelectric element 303 d, at least one vacantspace 303 e and a bulge 303E The suspension plate 303 a is square-shapedbecause the square suspension plate 303 a is more power-saving than thecircular suspension plate. Generally, the consumed power of thecapacitive load at the resonance frequency is positive related to theresonance frequency. Since the resonance frequency of the squaresuspension plate 303 a is obviously lower than that of the circularsquare suspension plate, the consumed power of the square suspensionplate 303 a is fewer. Therefore, the square suspension plate 303 a inthis embodiment is more effective in power-saving. In the embodiment,the outer frame 303 b is disposed around the periphery of the suspensionplate 303 a. The at least one bracket 303 c is connected between thesuspension plate 303 a and the outer frame 303 b for elasticallysupporting the suspension plate 303 a. The piezoelectric element 303 dhas a side, and a length of the side of the piezoelectric element 303 dis less than or equal to that of the suspension plate 303 a. Thepiezoelectric element 303 d is attached on a surface of the suspensionplate 303 a. When a voltage is applied to the piezoelectric element 303d, the suspension plate 303 a is driven to undergo the bendingdeformation. The at least one vacant space 303 e is formed between thesuspension plate 303 a, the outer frame 303 b and the at least onebracket 303 c for allowing the gas to flow therethrough. The bulge 303 fis formed on a surface of the suspension plate 303 a opposite to thesurface of the suspension plate 303 a that the piezoelectric element 303d is attached thereon. In this embodiment, the bulge 303 f may be aconvex structure integrally formed by using an etching process on thesuspension plate 303 a, which is opposite to the surface of thesuspension plate 303 a that the piezoelectric element 303 d attachedthereon, and formed a stepped structure.

Please refer to FIGS. 4A, 4B and 5A. In the embodiment, the gas inletplate 301, the resonance plate 302, the piezoelectric actuator 303, thefirst insulation plate 304, the conducting plate 305 and the secondinsulation plate 306 are stacked and assembled sequentially. A chamberspace 307 is formed between the suspension plate 303 a and the resonanceplate 302, and the chamber space 307 can be formed by filling a gapbetween the resonance plate 302 and the outer frame 303 b of thepiezoelectric actuator 303 with a material, such as a conductiveadhesive, but not limited thereto. Thus, a specific depth between theresonance plate 302 and the suspension plate 303 a is maintained to formthe chamber space 307 and allow the gas to pass rapidly. In addition,since a suitable distance between the resonance plate 302 and thesuspension plate 303 a are maintained, so that the contact interferencetherebetween is reduced and the noise generated thereby is largelyreduced. In some other embodiments, the thickness of the conductiveadhesive filled into the gap between the resonance plate 302 and theouter frame 303 b of the piezoelectric actuator 303 is reduced byincreasing the height of the outer frame 303 b of the piezoelectricactuator 303. Therefore, the entire assembling structure of actuatingpump 30 would not indirectly influenced by the impact on the fillingmaterial result of the hot pressing temperature and the coolingtemperature, so as to avoid the actual size of the formed chamber space307 being influenced by the thermal expansion and cooling contraction ofthe filling material, i.e. conductive adhesive, but not limited thereto.In addition, since the transportation effect of the actuating pump 30 isaffected by the chamber space 307, maintain the chamber space 307 isvery important to provide a stable transportation efficiency of theactuating pump 30.

Please refer to FIG. 5B, in some other embodiments of the piezoelectricactuator 303, the suspension plate 303 a is formed by stamping to makeit extend outwardly a distance. The extended distance can be adjustedthrough the at least one bracket 303 c formed between the suspensionplate 303 a and the outer frame 303 b. Consequently, the surface of thebulge 303 f disposed on the suspension plate 303 a and the surface ofthe outer frame 303 b are non-coplanar. Through applying small amount offilling materials, such as a conductive adhesive, to the couplingsurface of the outer frame 303 b, the piezoelectric actuator 303 isattached to the fixed part 302 c of the resonance plate 302 by hotpressing, thereby assembling the piezoelectric actuator 303 and theresonance plates 302 in combination. Thus, the structure of the chamberspace 307 is improved by directly stamping the suspension plate 303 a ofthe piezoelectric actuator 303 described above. In this way, therequired chamber space 307 can be obtained by adjusting the stampingdistance of the suspension plate 303 a of the piezoelectric actuator303, thereby simplifying the structural design of the chamber space 307,and also achieving the advantages of simplifying the manufacturingprocess and shortening the processing time. In addition, the firstinsulating plate 304, the conducting plate 305 and the second insulatingplate 306 are all thin frame-shaped sheets, but are not limited thereto,and are sequentially stacked on the piezoelectric actuator 303 tocomplete the entire structure of actuating pump 30.

In order to understand the operation steps of the actuating pump 30,please refer to FIGS. 5C to 5E. Please refer to FIG. 5C, thepiezoelectric element 303 d of the piezoelectric actuator 303 isdeformed after a voltage is applied thereto, and the suspension plate303 a is driven to displace downwardly. In that, the volume of thechamber space 307 is increased, a negative pressure is generated in thechamber space 307, and the gas in the convergence chamber 301 c isintroduced into the chamber space 307. At the same time, the resonanceplate 302 is thus displaced downwardly and synchronously in resonancewith the suspension plate 303 a. Thereby, the volume of the convergencechamber 301 c is increased. Since the gas in the convergence chamber 301c is introduced into the chamber space 307, the convergence chamber 301c is also in a negative pressure state, and therefore the gas is suckedinto the convergence chamber 301 c through the gas inlet apertures 301 aand the convergence channels 301 b. Then, as shown in FIG. 5D, thepiezoelectric element 303 d drives the suspension plate 303 a todisplace upwardly to compress the chamber space 307. Similarly, theresonance plate 302 is actuated in resonance with the suspension plate303 a and is displaced upwardly. Thus, the gas in the chamber space 307is further transported downwardly to pass through the vacant spaces 303e, and thereby achieving the effect of gas transportation. Finally, asshown in FIG. 5E, when the suspension plate 303 a is driven and returnto an initial state, the resonance plate 302 is also driven to displacedownwardly due to inertia. In that, the resonance plate 302 pushes thegas in the chamber space 307 toward the vacant spaces 303 e, andincrease the volume of the convergence chamber 301 c. Thus, the gas cancontinuously pass through the gas inlet apertures 301 a and theconvergence channels 301 b, and then converged in the convergencechamber 301 c. By repeating the operation steps illustrated in FIGS. 5Cto 5E continuously, the actuating pump 30 can continuously transport thegas at high speed. The gas enters the gas inlet apertures 301 a, flowsthrough a flow path formed by the gas inlet plate 301 and the resonanceplate 302 and generates a pressure gradient, and then transporteddownwardly through the vacant spaces 303 e, so as to complete the gastransporting operation of the actuating pump 30.

Please refer to FIG. 6A to FIG. 6C, FIG. 7A to FIG. 7B, FIG. 8, FIG. 9Ato FIG. 9B and FIG. 14. In the embodiment, the gas detection module 4includes a controlling circuit board 4 a, a gas detection main part 4 b,a microprocessor 4 c and a communicator 4 d. The gas detection main part4 b, the microprocessor 4 c and the communicator 4 d are integrallypackaged on the controlling circuit board 4 a and electrically connectedto the controlling circuit board 4 a. The microprocessor 4 c receives adetection datum of the particle concentration of the suspended particlescontained in the purified gas for calculating and processing, andcontrols to enable and/or disabled the operations of the gas guider 3for filtering and purifying the gas. The communicator 4 d transmits thedetection datum of the particle concentration received from themicroprocessor 4 c to an external device 6 through a communicationtransmission.

As shown in FIG. 6A to FIG. 6C, FIG. 7A to FIG. 7B, FIG. 8, FIG. 9A toFIG. 9B, FIG. 10A to FIG. 10B and FIG. 12A to FIG. 12C, in theembodiment, the gas detection main part 4 b includes a base 41, apiezoelectric actuator 42, a driving circuit board 43, a laser component44, a particulate sensor 45 and an outer cover 46. The base 41 includesa first surface 411, a second surface 412, a laser loading region 413, agas-inlet groove 414, a gas-guiding-component loading region 415 and agas-outlet groove 416. In the embodiment, the first surface 411 and thesecond surface 412 are two surfaces opposite to each other. In theembodiment, the laser loading region 413 is hollowed out from the firstsurface 411 to the second surface 412. The gas-inlet groove 414 isconcavely formed from the second surface 412 and disposed adjacent tothe laser loading region 413. The gas-inlet groove 414 includes agas-inlet 414 a and two lateral walls. The gas-inlet 414 a is incommunication with an environment outside the base 41, and is spatiallycorresponding in position to an inlet opening 461 a of the outer cover46. A transparent window 414 b is opened on the two lateral walls and isin communication with the laser loading region 413. Therefore, the firstsurface 411 of the base 41 is covered and attached by the outer cover46, and the second surface 412 is covered and attached by the drivingcircuit board 43. Thus, the gas-inlet groove 414 defines an inlet path,as shown in FIG. 8 and FIG. 12A.

Please refer to FIGS. 7A to 7B. In the embodiment, thegas-guiding-component loading region 415 is concavely formed from thesecond surface 412 and in communication with the gas-inlet groove 414. Aventilation hole 415 a penetrates a bottom surface of thegas-guiding-component loading region 415. In the embodiment, thegas-outlet groove 416 includes a gas-outlet 416 a, and the gas-outlet416 a is spatially corresponding to the outlet opening 461 b of theouter cover 46. The gas-outlet groove 416 includes a first section 416 band a second section 416 c. The first section 416 b is concavely formedon a region out from the first surface 411 spatially corresponding to avertical projection area of the gas-guiding-component loading region415. The second section 416 c is hollowed out from the first surface 411to the second surface 412 in a region where the first surface 411 is notaligned with the vertical projection area of the gas-guiding-componentloading region 415 and extended therefrom. The first section 416 b andthe second section 416 c are connected to form a stepped structure.Moreover, the first section 416 b of the gas-outlet groove 416 is incommunication with the ventilation hole 415 a of thegas-guiding-component loading region 415, and the second section 416 cof the gas-outlet groove 416 is in communication with the gas-outlet 416a. In that, when first surface 411 of the base 41 is attached andcovered by the outer cover 46, and the second surface 412 of the base 41is attached and covered by the driving circuit board 43, such that thegas-outlet groove 416 and the driving circuit board 43 collaborativelydefines an outlet path, as shown in FIG. 8 to FIG. 12C.

Please refer to FIG. 6C and FIG. 8. In the embodiment, the lasercomponent 44 and the particulate sensor 45 are disposed on the drivingcircuit board 43 and accommodated in the base 41. In order to clearlydescribe the positions of the laser component 44 and the particulatesensor 45 in the base 41, the driving circuit board 43 is omitted inFIG. 8. Please refer to FIG. 6C, FIG. 7B, and FIG. 8, the lasercomponent 44 is accommodated in the laser loading region 413 of the base41, and the particulate sensor 45 is accommodated in the gas-inletgroove 414 of the base 41 and is aligned to the laser component 44. Inaddition, the laser component 44 is spatially corresponding to thetransparent window 414 b, a light beam emitted by the laser component 44passes through the transparent window 414 b and irradiates into thegas-inlet groove 414. A light beam path emitted from the laser component44 passes through the transparent window 414 b and extends in adirection perpendicular to the gas-inlet groove 414. In the embodiment,a projecting light beam emitted from the laser component 44 passesthrough the transparent window 414 b and enters the gas-inlet groove414, and suspended particles contained in the gas passing through thegas-inlet groove 414 is irradiated by the projecting light beam. Whenthe suspended particles contained in the gas are irradiated and generatescattered light spots, the scattered light spots are received andcalculated by the particulate sensor 45 for obtaining relatedinformation about the sizes and the concentration of the suspendedparticles contained in the gas. For example, the suspended particlescontained in the gas include bacteria and viruses. In the embodiment,the particulate sensor 45 is a PM2.5 sensor.

Please refer to FIG. 9A and FIG. 9B. The piezoelectric actuator 42 isaccommodated in the gas-guiding-component loading region 415 of the base41. Preferably but not exclusively, the gas-guiding-component loadingregion 415 is square-shaped and includes four positioning protrusions145 b disposed at four corners of the gas-guiding-component loadingregion 415, respectively. The piezoelectric actuator 42 is disposed inthe gas-guiding-component loading region 415 through the fourpositioning protrusions 415 b. In addition, as shown in FIGS. 7A, 7B,12B and 12C, the gas-guiding-component loading region 415 is incommunication with the gas-inlet groove 414. When the piezoelectricactuator 42 is enabled, the gas in the gas-inlet groove 414 is inhaledby the piezoelectric actuator 42, so that the gas flows into thepiezoelectric actuator 42, and the gas is transported into thegas-outlet groove 416 through the ventilation hole 415 a of thegas-guiding-component loading region 415.

Please refer to FIGS. 6B and 6C. In the embodiment, the driving circuitboard 43 covers and is attached to the second surface 412 of the base41, and the laser component 44 is positioned and disposed on the drivingcircuit board 43, and is electrically connected to the driving circuitboard 43. The particulate sensor 45 is positioned and disposed on thedriving circuit board 43, and is electrically connected to the drivingcircuit board 43. As shown in FIG. 6B, when the outer cover 46 coversthe base 41, the inlet opening 461 a is spatially corresponding to thegas-inlet 414 a of the base 41 (as shown in FIG. 12A), and the outletopening 461 b is spatially corresponding to the gas-outlet 416 a of thebase 41 (as shown in FIG. 12C).

Please refer to FIGS. 10A and 10B. In the embodiment, the piezoelectricactuator 42 includes a gas-injection plate 421, a chamber frame 422, anactuator element 423, an insulation frame 424 and a conductive frame425. In the embodiment, the gas-injection plate 421 is made by aflexible material and includes a suspension plate 421 a and a hollowaperture 421 b. The suspension plate 421 a is a sheet structure andpermitted to undergo a bending deformation. Preferably but notexclusively, the shape and the size of the suspension plate 421 a areaccommodated in the inner edge of the gas-guiding-component loadingregion 415, but not limited thereto. The shape of the suspension plate421 a is selected from the group consisting of a square, a circle, anellipse, a triangle and a polygon. The hollow aperture 421 b passesthrough a center of the suspension plate 421 a, so as to allow the gasto flow therethrough.

Please refer to FIG. 10A, FIG. 10B and FIG. 11A. In the embodiment, thechamber frame 422 is carried and stacked on the gas-injection plate 421.In addition, the shape of the chamber frame 422 is corresponding to thegas-injection plate 421. The actuator element 423 is carried and stackedon the chamber frame 422. A resonance chamber 426 is collaborativelydefined by the actuator element 423, the chamber frame 422 and thesuspension plate 421 a and is formed between the actuator element 423,the chamber frame 422 and the suspension plate 421 a. The insulationframe 424 is carried and stacked on the actuator element 423 and theappearance of the insulation frame 424 is similar to that of the chamberframe 422. The conductive frame 425 is carried and stacked on theinsulation frame 424, and the appearance of the conductive frame 425 issimilar to that of the insulation frame 424. In addition, the conductiveframe 245 includes a conducting pin 425 a and a conducting electrode 425b. The conducting pin 425 a is extended outwardly from an outer edge ofthe conductive frame 425, and the conducting electrode 425 b is extendedinwardly from an inner edge of the conductive frame 425. Moreover, theactuator element 423 further includes a piezoelectric carrying plate 423a, an adjusting resonance plate 423 b and a piezoelectric plate 423 c.The piezoelectric carrying plate 423 a is carried and stacked on thechamber frame 422. The adjusting resonance plate 423 b is carried andstacked on the piezoelectric carrying plate 423 a. The piezoelectricplate 423 c is carried and stacked on the adjusting resonance plate 423b. The adjusting resonance plate 423 b and the piezoelectric plate 423 care accommodated in the insulation frame 424. The conducting electrode425 b of the conductive frame 425 is electrically connected to thepiezoelectric plate 423 c. In the embodiment, the piezoelectric carryingplate 423 a and the adjusting resonance plate 423 b are made by aconductive material. The piezoelectric carrying plate 423 a includes apiezoelectric pin 423 d. The piezoelectric pin 423 d and the conductingpin 425 a are electrically connected to a driving circuit (not shown) ofthe driving circuit board 43, so as to receive a driving signal, such asa driving frequency and a driving voltage. Through this structure, acircuit is formed by the piezoelectric pin 423 d, the piezoelectriccarrying plate 423 a, the adjusting resonance plate 423 b, thepiezoelectric plate 423 c, the conducting electrode 425 b, theconductive frame 425 and the conducting pin 425 a for transmitting thedriving signal. Moreover, the insulation frame 424 is insulated betweenthe conductive frame 425 and the actuator element 423, so as to avoidthe occurrence of a short circuit. Thereby, the driving signal istransmitted to the piezoelectric plate 423 c. After receiving thedriving signal such as the driving frequency and the driving voltage,the piezoelectric plate 423 c deforms due to the piezoelectric effect,and the piezoelectric carrying plate 423 a and the adjusting resonanceplate 423 b are further driven to generate the bending deformation inthe reciprocating manner

As described above, the adjusting resonance plate 423 b is locatedbetween the piezoelectric plate 423 c and the piezoelectric carryingplate 423 a and served as a cushion between the piezoelectric plate 423c and the piezoelectric carrying plate 423 a. Thereby, the vibrationfrequency of the piezoelectric carrying plate 423 a is adjustable.Basically, the thickness of the adjusting resonance plate 423 b isgreater than the thickness of the piezoelectric carrying plate 423 a,and the thickness of the adjusting resonance plate 423 b is adjustable,thereby the vibration frequency of the actuator element 423 can beadjusted accordingly.

Please refer to FIG. 10A, FIG. 10B and FIG. 11A. In the embodiment, thegas-injection plate 421, the chamber frame 422, the actuator element423, the insulation frame 424 and the conductive frame 425 are stackedand positioned in the gas-guiding-component loading region 415sequentially, so that the piezoelectric actuator 42 is supported andpositioned in the gas-guiding-component loading region 415. The bottomof the gas-injection plate 421 is fixed on the four positioningprotrusions 415 b of the gas-guiding-component loading region 415 forsupporting and positioning, so that a plurality of vacant spaces 421 cis defined between the suspension plate 421 a of the gas-injection plate421 and an inner edge of the gas-guiding-component loading region 415for gas flowing therethrough.

Please refer to FIG. 11A. A flowing chamber 427 is formed between thegas-injection plate 421 and the bottom surface of thegas-guiding-component loading region 415. The flowing chamber 427 is incommunication with the resonance chamber 426 between the actuatorelement 423, the chamber frame 422 and the suspension plate 421 athrough the hollow aperture 421 b of the gas-injection plate 421. Bycontrolling the vibration frequency of the gas in the resonance chamber426 to be close to the vibration frequency of the suspension plate 421a, the Helmholtz resonance effect is generated between the resonancechamber 426 and the suspension plate 421 a, so as to improve theefficiency of gas transportation.

Please refer to FIG. 11B. When the piezoelectric plate 423 c is movedaway from the bottom surface of the gas-guiding-component loading region415, the suspension plate 421 a of the gas-injection plate 421 is drivento move away from the bottom surface of the gas-guiding-componentloading region 415 by the piezoelectric plate 423 c. In that, the volumeof the flowing chamber 427 is expanded rapidly, the internal pressure ofthe flowing chamber 427 is decreased to form a negative pressure, andthe gas outside the piezoelectric actuator 42 is inhaled through thevacant spaces 421 c and enters the resonance chamber 426 through thehollow aperture 421 b. Consequently, the pressure in the resonancechamber 426 is increased to generate a pressure gradient. Further asshown in FIG. 11C, when the suspension plate 421 a of the gas-injectionplate 421 is driven by the piezoelectric plate 423 c to move toward thebottom surface of the gas-guiding-component loading region 415, the gasin the resonance chamber 426 is discharged out rapidly through thehollow aperture 421 b, and the gas in the flowing chamber 427 iscompressed, thereby the converged gas is quickly and massively ejectedout of the flowing chamber 427 under the condition close to an ideal gasstate of the Benulli's law, and transported to the ventilation hole 415a of the gas-guiding-component loading region 415. By repeating theabove operation steps shown in FIG. 11B and FIG. 11C, the piezoelectricplate 423 c is driven to generate the bending deformation in areciprocating manner. According to the principle of inertia, since thegas pressure inside the resonance chamber 426 is lower than theequilibrium gas pressure after the converged gas is ejected out, the gasis introduced into the resonance chamber 426 again. Moreover, thevibration frequency of the gas in the resonance chamber 426 iscontrolled to be close to the vibration frequency of the piezoelectricplate 423 c, so as to generate the Helmholtz resonance effect to achievethe gas transportation at high speed and in large quantities.

Furthermore, as shown in FIG. 12A, the gas is inhaled through the inletopening 461 a of the outer cover 46, flows into the gas-inlet groove 414of the base 41 through the gas-inlet 414 a, and is transported to theposition of the particulate sensor 45. Further as shown in FIG. 12B, thepiezoelectric actuator 42 is enabled continuously to inhale the gas intothe inlet path, and facilitate the gas to be introduced rapidly, flowstably, and be transported above the particulate sensor 45. At thistime, a projecting light beam emitted from the laser component 44 passesthrough the transparent window 414 b to irritate on the suspendedparticles contained in the gas flowing above the particulate sensor 45in the gas-inlet groove 414. When the suspended particles contained inthe gas are irradiated and generate scattered light spots, the scatteredlight spots are received and calculated by the particulate sensor 45 forobtaining related information about the sizes and the concentration ofthe suspended particles contained in the gas. Moreover, the gas abovethe particle sensor 45 is continuously driven and transported by thepiezoelectric actuator 42, flows into the ventilation hole 415 a of thegas-guiding-component loading region 415, and is transported to thefirst section 416 b of the gas-outlet groove 416. As shown in FIG. 12C,after the gas flows into the first section 416 b of the gas-outletgroove 416, the gas is continuously transported into the first section416 b by the piezoelectric actuator 42, and the gas in the first section416 b is pushed to the second section 416 c. Finally, the gas isdischarged out through the gas-outlet 416 a and the outlet opening 461b.

As shown in FIG. 13, the base 41 further includes a light trappingregion 417. The light trapping region 417 is hollowed out from the firstsurface 411 to the second surface 412 and is spatially corresponding tothe laser loading region 413. In the embodiment, the light beam emittedby the laser component 44 is projected into the light trapping region417 through the transparent window 414 b. The light trapping region 417includes a light trapping structure 417 a having an oblique conesurface. The light trapping structure 417 a is spatially correspondingto the light beam path emitted from the laser component 44. In addition,the projecting light beam emitted from the laser component 44 isreflected into the light trapping region 417 through the oblique conesurface of the light trapping structure 417 a, so as to prevent theprojecting light beam from reflecting to the position of the particulatesensor 45. In the embodiment, a light trapping distance d is maintainedbetween the transparent window 414 b and a position where the lighttrapping structure 417 a receives the projecting light beam, so as toavoid the projecting light beam projected on the light trappingstructure 417 a from reflecting back to the position of the particulatesensor 45 directly due to excessive stray light generated afterreflection, and result in distortion of detection accuracy.

Please refer to FIG. 6Cand FIG. 13. The gas detection module 4 of thepresent disclosure not only detects the suspended particles in the gas,but also detects the characteristics of the introduced gas. Preferablybut not exclusively, the gas can be detected is selected from the groupconsisting of formaldehyde, ammonia, carbon monoxide, carbon dioxide,oxygen, ozone and a combination thereof In the embodiment, the gasdetection module 4 further includes a first volatile-organic-compoundsensor 47 a. The first volatile-organic-compound sensor 47 a positionedand disposed on the driving circuit board 43 is electrically connectedto the driving circuit board 43, and accommodated in the gas-outletgroove 416, so as to detect the gas flowing through the outlet path ofthe gas-outlet groove 416. Thus, the concentration or thecharacteristics of volatile organic compounds contained in the gas inthe outlet path can be detected. Alternatively, in an embodiment, thegas detection module 4 further includes a secondvolatile-organic-compound sensor 47 b. The secondvolatile-organic-compound sensor 47 b positioned and disposed on thedriving circuit board 43 is electrically connected to the drivingcircuit board 43 and is accommodated in the light trapping region 417.Thus, the concentration or the characteristics of volatile organiccompounds contained in the gas flowing through the inlet path of thegas-inlet groove 414 and transporting into the light trapping region 417through the transparent window 414 b is detected.

In summary, the present disclosure provides a purification device of ababy carriage. A gas detection module is utilized to monitor the airquality in the environment at any time, and a purification unit isutilized to provide a solution for purifying and improving the airquality. In this way, the gas detection module and the purification unitcombined with a gas guider can export a gas at a specific airflowamount, so as to achieve the filtering operation of purification unitand generate a purified gas. In addition, the gas guider constantlycontrols the airflow rate within 3 minutes to reduce the particleconcentration of the suspended particles contained in the purified gasto less than 0.75 μg/m³, so as to achieve the purification effect ofsafe filtration. Moreover, the gas detection module is used to detectthe gas in the breathing area of the baby in the baby carriage, so as toprovide the purified gas through safe filtration and obtain real-timeinformation. When the particle concentration is too high, a warningnotice can be sent. Preventive measures can be taken immediately, or anisolation cover can be provided for protection and taking protectivemeasures in the isolation cover.

While the invention has been described in terms of what is presentlyconsidered to be the most practical and preferred embodiments, it is tobe understood that the invention needs not be limited to the disclosedembodiment. On the contrary, it is intended to cover variousmodifications and similar arrangements included within the spirit andscope of the appended claims which are to be accorded with the broadestinterpretation so as to encompass all such modifications and similarstructures.

What is claimed is:
 1. A purification device of a baby carriage appliedin the baby carriage, and comprising: a main body mounted on the babycarriage and comprising at least one inlet and at least one outlet; apurification unit disposed in the main body for filtering a gasintroduced into the main body through the at least one inlet; a gasguider disposed in the main body and adjacent to the at least oneoutlet, wherein the gas outside the main body is inhaled and flowsthrough the purification unit for filtering and purifying, so that apurified gas is generated by filtering and is discharged out through theat least one outlet; and a gas detection module disposed in the mainbody for detecting a particle concentration of suspended particlescontained in the purified gas filtered through the purification unit;wherein the gas guider is constantly controlled to operate and export agas at an airflow rate within 3 minutes to reduce the particleconcentration of the suspended particles contained in the purified gasto less than 0.75 μg/m³, so that the purified gas is provided by safefiltration to a baby breathing in the baby carriage.
 2. The purificationdevice of the baby carriage according to claim 1, wherein the main bodyis a directional gas-guiding device, which is fixedly combined with afixed frame of the baby carriage, wherein a directional guiding elementis disposed in the at least one outlet of the main body, so that apurified gas generated by directional filtering is discharged from theat least one outlet.
 3. The purification device of the baby carriageaccording to claim 1, wherein the main body comprises a gas-flow channeldisposed between the at least one inlet and the at least one outlet,wherein the purification unit is disposed in the gas-flow channel, andthe gas guider is disposed in the gas-flow channel at a side of thepurification unit, so that the gas outside the main body is inhaledthrough the at least one inlet, flows through the purification unit forfiltering to generate the purified gas, and is discharged out throughthe at least one outlet.
 4. The purification device of the baby carriageaccording to claim 1, wherein the purification unit comprises a highefficiency particulate air filter screen.
 5. The purification device ofthe baby carriage according to claim 4, wherein the high efficiencyparticulate air filter screen is coated with an cleansing factorcontaining chlorine dioxide to inhibit viruses and bacteria in the gas.6. The purification device of the baby carriage according to claim 4,wherein the high efficiency particulate air filter screen is coated withan herbal protective layer extracted from ginkgo and Japanese rhuschinensis to form an herbal protective anti-allergic filter, so as toresist allergy effectively and destroy a surface protein of influenzavirus in the gas introduced into the main body and passing through thehigh efficiency particulate air filter screen.
 7. The purificationdevice of the baby carriage according to claim 4, wherein the highefficiency particulate air filter screen is coated with a silver ion toinhibit viruses and bacteria contained in the gas introduced into themain body.
 8. The purification device of the baby carriage according toclaim 4, wherein the purification unit comprises a photo-catalyst unitcombined with the high efficiency particulate air filter screen, thephoto-catalyst unit comprises a photo-catalyst and an ultraviolet lamp,and the photo-catalyst is irradiated with the ultraviolet lamp to purifythe gas introduced into the main body.
 9. The purification device of thebaby carriage according to claim 4, wherein the purification unitcomprises a photo-plasma unit combined with the high efficiencyparticulate air filter screen, and the photo-plasma unit comprises ananometer irradiation tube, wherein the gas introduced into the mainbody is irradiated by the nanometer irradiation tube to decomposevolatile organic gases contained in the gas and purify the gas.
 10. Thepurification device of the baby carriage according to claim 4, whereinthe purification unit comprises a negative ionizer combined with thehigh efficiency particulate air filter screen, and the negative ionizercomprises at least one electrode wire, at least one dust collectingplate and a boost power supply, wherein when a high voltage isdischarged through the electrode wire, the suspended particles containedin the gas introduced into the main body are adhered to the dustcollecting plate and purify the gas.
 11. The purification device of thebaby carriage according to claim 4, wherein the purification unitcomprises a plasma ion unit combined with the high efficiencyparticulate air filter screen, and the plasma ion unit comprises a firstelectric-field protection screen, a high efficiency particulate airfilter screen, a high-voltage discharge electrode, a secondelectric-field protection screen and a boost power supply device,wherein the boot power supply device provides a high voltage to thehigh-voltage discharge electrode and discharge to generate ahigh-voltage plasma column with plasma ion, and viruses or bacteriacontained in the gas introduced into the main body are decomposed by theplasma ion.
 12. The purification device of the baby carriage accordingto claim 1, wherein the gas guider is a fan.
 13. The purification deviceof the baby carriage according to claim 1, wherein the gas guider is anactuating pump, and the actuating pump comprises: a gas inlet platehaving at least one gas inlet aperture, at least one convergence channeland a convergence chamber, wherein the at least one gas inlet apertureis disposed to inhale the gas outside the main body, the at least onegas inlet aperture correspondingly penetrates through the gas inletplate into the at least one convergence channel, and the at least oneconvergence channel is converged into the convergence chamber, so thatthe gas inhaled through the at least one gas inlet aperture is convergedinto the convergence chamber; a resonance plate connected to the gasinlet plate and having a central aperture, a movable part and a fixedpart, wherein the central aperture is disposed at a center of theresonance plate, and is corresponding in position to the convergencechamber of the gas inlet plate, the movable part surrounds the centralaperture and is corresponding in position to the convergence chamber,and the fixed part surrounds the movable part and is fixedly attached onthe gas inlet plate; and a piezoelectric actuator connected to theresonance plate and corresponding in position to the resonance plate,wherein the piezoelectric actuator comprises a suspension plate, anouter frame, at least one bracket and a piezoelectric element, whereinthe suspension plate is permitted to undergo a bending deformation, theouter frame surrounds the suspension plate, the at least one bracket isconnected between the suspension plate and the outer frame to provide anelastic support for the suspension plate, and the piezoelectric elementis attached to a surface of the suspension late, wherein when a voltageis applied to the piezoelectric element, the suspension plate is drivento undergo the bending deformation; wherein a chamber space is formedbetween the resonance plate and the piezoelectric actuator, so that whenthe piezoelectric actuator is driven, the gas introduced from the atleast one gas inlet aperture of the gas inlet plate is converged to theconvergence chamber through the at least one convergence channel, andflows through the central aperture of the resonance plate so as togenerate a resonance effect by the piezoelectric actuator and themovable part of the resonance plate to transport the gas.
 14. Thepurification device of the baby carriage according to claim 1, whereinthe gas detection module comprises a controlling circuit board, a gasdetection main part, a microprocessor and a communicator, and the gasdetection main part, the microprocessor and the communicator areintegrally packaged on the controlling circuit board and electricallyconnected to the controlling circuit board, wherein the microprocessorreceives a detection datum of the particle concentration of thesuspended particles contained in the purified gas from the gas detectionmodule for calculating and processing, and controls to enable anddisable the operations of the gas guider for gas filtering andpurifying, wherein the communicator transmits the detection datum of theparticle concentration received from the microprocessor to an externaldevice, so that the external device obtains and records the detectiondatum of the particle concentration of the purified gas, issues an alarmnotice and/or a notification, and feeds back to the purification deviceof the baby carriage to adjust the airflow rate of the gas guider. 15.The purification device of the baby carriage according to claim 14,wherein the gas detection main part comprises: a base comprising: afirst surface; a second surface opposite to the first surface; a laserloading region hollowed out from the first surface to the secondsurface; a gas-inlet groove concavely formed from the second surface anddisposed adjacent to the laser loading region, wherein the gas-inletgroove comprises a gas-inlet and two lateral walls, the gas-inlet is incommunication with an environment outside the base, and a transparentwindow is opened on the two lateral walls and is in communication withthe laser loading region; a gas-guiding-component loading regionconcavely formed from the second surface and in communication with thegas-inlet groove, wherein a ventilation hole penetrates a bottom surfaceof the gas-guiding-component loading region, and thegas-guiding-component loading region has four positioning protrusionsdisposed at four corners thereof; and a gas-outlet groove concavelyformed from the first surface, spatially corresponding to the bottomsurface of the gas-guiding-component loading region, and hollowed outfrom the first surface to the second surface in a region where the firstsurface is not aligned with the gas-guiding-component loading region,wherein the gas-outlet groove is in communication with the ventilationhole, and a gas-outlet is disposed in the gas-outlet groove and incommunication with the environment outside the base; a piezoelectricactuator accommodated in the gas-guiding-component loading region; adriving circuit board covering and attached to the second surface of thebase; a laser component positioned and disposed on the driving circuitboard, electrically connected to the driving circuit board, andaccommodated in the laser loading region, wherein a light beam pathemitted from the laser component passes through the transparent windowand extends in a direction perpendicular to the gas-inlet groove; aparticulate sensor positioned and disposed on the driving circuit board,electrically connected to the driving circuit board, and disposed at aposition where the gas-inlet groove orthogonally intersects with thelight beam path of the laser component, so that the suspended particlescontained in the purified gas passing through the gas-inlet groove andirradiated by a projecting light beam emitted from the laser componentare detected; an outer cover covering the first surface of the base andcomprising a side plate, wherein the side plate has an inlet openingspatially corresponding to the gas-inlet and an outlet opening spatiallycorresponding to the gas-outlet, respectively; and a firstvolatile-organic-compound sensor positioned and disposed on the drivingcircuit board, electrically connected to the driving circuit board, andaccommodated in the gas-outlet groove, so as to detect volatile organiccompounds contained in the purified gas flowing through the outlet pathof the gas-outlet groove; wherein the first surface of the base iscovered with the outer cover, and the second surface of the base iscovered with the driving circuit board, so that an inlet path is definedby the gas-inlet groove, and an outlet path is defined by the gas-outletgroove, so that the purified gas is inhaled from the environment outsidethe base by the piezoelectric actuator, transported into the inlet pathdefined by the gas-inlet groove through the inlet opening, and passesthrough the particulate sensor to detect the particle concentration ofthe suspended particles contained in the purified gas, and the purifiedgas transported through the piezoelectric actuator is transported out ofthe outlet path defined by the gas-outlet groove through the ventilationhole and then discharged through the outlet opening.
 16. Thepurification device of the baby carriage according to claim 15, whereinthe piezoelectric actuator comprises: a gas-injection plate comprising asuspension plate and a hollow aperture, wherein the suspension plate ispermitted to undergo a bending deformation, and the hollow aperture isformed at a center of the suspension plate; a chamber frame carried andstacked on the suspension plate; an actuator element carried and stackedon the chamber frame and comprising a piezoelectric carrying plate, anadjusting resonance plate and a piezoelectric plate, wherein thepiezoelectric carrying plate is carried and stacked on the chamberframe, the adjusting resonance plate is carried and stacked on thepiezoelectric carrying plate, and the piezoelectric plate is carried andstacked on the adjusting resonance plate for receiving an voltageapplied thereto and driving the piezoelectric carrying plate and theadjusting resonance plate to generate the bending deformation in areciprocating manner; an insulation frame carried and stacked on theactuator element; and a conductive frame carried and stacked on theinsulation frame, wherein the gas-injection plate is fixed on the fourpositioning protrusions of the gas-guiding-component loading region forsupporting and positioning, so that the gas-injection plate and an inneredge of the gas-guiding-component loading region define a vacant spacefor the purified gas flowing therethrough, a flowing chamber is formedbetween the gas-injection plate and the bottom surface of thegas-guiding-component loading region, and a resonance chamber is formedbetween the actuator element, the chamber frame and the suspensionplate, wherein when the actuator element is enabled to drive thegas-injection plate to move and generate a resonance effect, thesuspension plate of the gas-injection plate is driven to generate thebending deformation in a reciprocating manner, the purified gas isinhaled through the vacant space, flows into the flowing chamber, andthen discharges out, so as to complete gas transportation of thepurified gas.
 17. The purification device of the baby carriage accordingto claim 1, wherein the airflow rate exported by the gas guider is atleast 800 ft³/min
 18. The purification device of the baby carriageaccording to claim 1, wherein the at least one outlet of the main bodymaintains a breathing distance from a breathing region of the baby inthe baby carriage, and the breathing distance is ranged from 60 cm to200 cm.
 19. The purification device of the baby carriage according toclaim 1, further comprising an isolation cover, wherein the isolationcover covers the baby carriage and the baby in the baby carriage andcomprises an opening, wherein the main body runs through and is fixed inthe opening, the at least one inlet is located outside the isolationcover, and the at least one outlet is located inside the isolationcover.
 20. The purification device of the baby carriage according toclaim 19, wherein the airflow rate exported by the gas guider is lessthan 800 ft³/min